Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-03-13
2007-03-13
Trost, William (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S437000, C455S444000, C342S354000, C343S777000
Reexamination Certificate
active
10628357
ABSTRACT:
A method for connecting the radio link between a mobile station and a base station is provided to improve quality of received signals at the base station and the mobile station. A radio network controller (RNC) monitors the difference between the reception power of signals from the source base station BS1and the destination base station BS2. If the base station BS2is incapable of directional beam signal transmission and reception, and when the reception power difference becomes smaller than a first handover threshold, the radio network controller adds the base station BS2as a radio link connection destination of the mobile station. If the base station BS2is capable of directional beam signal transmission and reception, and when the reception power difference becomes smaller than a second handover threshold, which is larger than the first handover threshold, the radio network controller adds the base station BS2as a radio link connection destination of the mobile station.
REFERENCES:
patent: 4670899 (1987-06-01), Brody et al.
patent: 5379447 (1995-01-01), Bonta et al.
patent: 5404576 (1995-04-01), Yahagi
patent: 5499386 (1996-03-01), Karlsson
patent: 5551060 (1996-08-01), Fujii et al.
patent: 6006096 (1999-12-01), Trompower
patent: 6055428 (2000-04-01), Soliman
patent: 6141565 (2000-10-01), Feuerstein et al.
patent: 6233455 (2001-05-01), Ramakrishna et al.
patent: 6301234 (2001-10-01), Lee
patent: 6580910 (2003-06-01), Mazur et al.
patent: 6631266 (2003-10-01), Lee et al.
patent: 6639551 (2003-10-01), Li et al.
patent: 2002/0019231 (2002-02-01), Palenius et al.
patent: 2002/0077113 (2002-06-01), Spaling et al.
patent: 2002/0082012 (2002-06-01), Wang et al.
patent: 1284819 (2001-02-01), None
patent: 1 089 588 (2001-04-01), None
patent: WO 99/33304 (1999-07-01), None
patent: WO 00/38456 (2000-06-01), None
S. Tanaka, et al., IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E80-A, No. 12, pp. 2445-2454, “Pilot Symbol-Assisted Decision-Directed Coherent Adaptive Array Diversity for DS-CDMA Mobile Radio Reverse Link”, Dec. 1997.
Nakamura Takehiro
Okawa Koichi
Tanaka Shinya
Balaoing Ariel
NTT DoCoMo Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Trost William
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